High dose hook effect occurs when     the sperm cells are hook shaped     the mobile antibody-antigen complex binds to the stationary antibodies     not enough sample has been added     the mobile antibody-antigen complex binds to excess antigens     excess antigens prevents the mobile antibody-antigen complex from binding to the stationary antibodies

The labels describe either a primary or secondary immune response. Drop each label into the appropriate box. Follows second and subsequent encounters with antigen Plasma antibody concentration. First exposure O Primary response IgM made first, then IgG Measurable antibody concentration in 5-10 days 10 20 Secondary response Antibodies produced for several weeks Measurable antibody concentration in 1-2 days 30 Follows first encounter with antigen Memory cells involved Subsequent exposure(s) 40 0 Days after exposure to antigen 10 Only IgG produced 20 30 40

An antibody is labelled as FITC mouse anti-donkey. What animal does the antibody target?

immunoassays are able to detect infections disease because of a very specific match between:   1. antigen , antibody 2. pamp and prr 3. phagocytes and phagosome 4. tcr and antigen